GRIB driver crashes on specific dataset ( Sample_WindWavesSwell.grb )

[rprinceley]

gdal_translate -of gtiff Sample_WindWavesSwell.grb out.tif

Causes a crash in GRIBRasterBand::IReadBlock at memcpy:

    if (!m_Grib_Data)
    {
        GRIBDataset *poGDS = (GRIBDataset *) poDS;

        FileDataSource grib_fp (poGDS->fp);

        ReadGribData(grib_fp, start, subgNum, &m_Grib_Data, &m_Grib_MetaData);
    }

    // Somehow this decoder guarantees us that the image is upside-down (GRIB scan mode 0100). Therefore reverse it again.
    memcpy(pImage, m_Grib_Data + nRasterXSize * (nRasterYSize - nBlockYOff - 1), nRasterXSize * sizeof(double));

[Even Rouault]

duplicate of #3246.

[Even Rouault]

Milestone 1.6.4 deleted